How noisy is 30 decibels?
How noisy is 30 decibels? Sound is measured in decibels (dB). A whisper is about 30 dB, normal conversation is about 60 dB, and a motorcycle engine running is about 95 dB. Noise above 70 dB over a prolonged period of time may start to damage your hearing.
Is 45 dB too loud to sleep?
The day–evening–night noise level (LDEN) is a European standard to express noise levels over an entire day. Similarly, LNIGHT is the noise indicator for the night. The World Health Organization (WHO) recommended reducing noise levels to 53 dB and 45 dB for LDEN and LNIGHT noise exposures, respectively.